/* compiled from site/scss/front.scss: the front page and the 404 page. Edit the SCSS, run `npm run build:css`, commit both. */
:root {
  color-scheme: light;
  --bg: #FAF8F6;
  --panel: #FDFCFB;
  --ink: #1a1a1a;
  --dim: #595959;
  --line: #DDD4C4;
  --accent: #176F40;
  --accent-soft: #E6F4EC;
  --ok: #176F40;
  --okbg: #E6F4EC;
  --warn: #B02A1E;
  --warnbg: #FDECEB;
  --rulebg: #F5F2ED;
  --grid: #EDE8E0;
  --curve: #176F40;
  --mid: #B02A1E;
  --gold: #8A5A00;
  --goldbg: #FBF3DF;
  --display: "Fraunces", Georgia, serif;
  --ui: Inter, -apple-system, BlinkMacSystemFont, "Segoe UI", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme=light]) {
    color-scheme: dark;
    --bg: #0F0F0F;
    --panel: #1a1a1a;
    --ink: #F5F5F5;
    --dim: #B4BCC9;
    --line: #334155;
    --accent: #4FCA85;
    --accent-soft: #14312A;
    --ok: #4FCA85;
    --okbg: #14312A;
    --warn: #FF8A7D;
    --warnbg: #3A1F1C;
    --rulebg: #1C2635;
    --grid: #2A2D36;
    --curve: #4FCA85;
    --mid: #FF8A7D;
    --gold: #E9BD62;
    --goldbg: #33290F;
  }
}
[data-theme=dark] {
  color-scheme: dark;
  --bg: #0F0F0F;
  --panel: #1a1a1a;
  --ink: #F5F5F5;
  --dim: #B4BCC9;
  --line: #334155;
  --accent: #4FCA85;
  --accent-soft: #14312A;
  --ok: #4FCA85;
  --okbg: #14312A;
  --warn: #FF8A7D;
  --warnbg: #3A1F1C;
  --rulebg: #1C2635;
  --grid: #2A2D36;
  --curve: #4FCA85;
  --mid: #FF8A7D;
  --gold: #E9BD62;
  --goldbg: #33290F;
}

@font-face {
  font-family: "Fraunces";
  font-style: normal;
  font-weight: 400 700;
  font-display: swap;
  src: url("fonts/fraunces.woff2") format("woff2");
}
@font-face {
  font-family: "Inter";
  font-style: normal;
  font-weight: 400 600;
  font-display: swap;
  src: url("fonts/inter.woff2") format("woff2");
}
@font-face {
  font-family: "JetBrains Mono";
  font-style: normal;
  font-weight: 400 500;
  font-display: swap;
  src: url("fonts/jetbrains-mono.woff2") format("woff2");
}
html {
  font-family: var(--ui);
  color: var(--ink);
  background: var(--bg);
}

body {
  margin: 0;
  font-size: 17px;
  line-height: 1.55;
}

a {
  color: var(--accent);
}

a:focus-visible, button:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 2px;
}

a, button {
  touch-action: manipulation;
  -webkit-tap-highlight-color: transparent;
}

h1, h2, h3 {
  font-family: var(--display);
  font-weight: 500;
  letter-spacing: -0.01em;
  text-wrap: balance;
}

[id] {
  scroll-margin-top: 72px;
}

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  padding: 8px 12px;
  background: var(--panel);
  color: var(--ink);
  border: 1px solid var(--line);
  border-radius: 6px;
  z-index: 10;
}

.skip:focus {
  top: 12px;
}

.top {
  display: flex;
  align-items: center;
  gap: 22px;
  padding: 10px 24px;
  border-bottom: 1px solid var(--line);
  background: var(--panel);
  position: sticky;
  top: 0;
  z-index: 5;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  text-decoration: none;
  font-family: var(--display);
  font-size: 20px;
  font-weight: 500;
}

.brand img {
  display: block;
}

.topnav {
  display: flex;
  gap: 18px;
  font-size: 15px;
}

.topnav a {
  color: var(--ink);
  text-decoration: none;
  padding: 6px 0;
}

.topnav a:hover {
  color: var(--accent);
  text-decoration: underline;
}

.theme {
  margin-left: auto;
  font: 500 13px var(--ui);
  color: var(--ink);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 6px 12px;
  cursor: pointer;
}

.theme:hover {
  border-color: var(--accent);
  color: var(--accent);
}

main {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 24px 56px;
}

main > section {
  padding: 44px 0 8px;
}

.section-lede {
  color: var(--dim);
  font-size: 18px;
  max-width: 64ch;
  margin: 0 0 22px;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
  gap: 48px;
  align-items: center;
  padding-top: 56px;
}

.hero h1 {
  font-size: clamp(38px, 5.2vw, 58px);
  line-height: 1.08;
  margin: 0 0 18px;
}

.lede {
  font-size: 20px;
  line-height: 1.5;
  max-width: 34em;
  margin: 0 0 26px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 0;
}

.button {
  display: inline-block;
  font: 500 16px var(--ui);
  color: var(--panel);
  background: var(--accent);
  border: 1px solid var(--accent);
  border-radius: 999px;
  padding: 11px 20px;
  text-decoration: none;
}

.button:hover {
  filter: brightness(1.08);
}

.button.quiet {
  color: var(--accent);
  background: transparent;
  border-color: var(--line);
}

.button.quiet:hover {
  border-color: var(--accent);
}

.preview {
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 22px 24px 18px;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.preview-crumb {
  margin: 0 0 4px;
  font-size: 13px;
  color: var(--dim);
}

.preview h2 {
  font-size: 24px;
  margin: 0 0 12px;
}

.preview p {
  margin: 0 0 10px;
  font-size: 16px;
}

.preview figure, .lesson figure {
  margin: 6px 0 12px;
}

.preview svg, .lesson svg {
  width: 100%;
  max-width: 360px;
  height: auto;
  display: block;
  color: var(--ink);
}

figcaption {
  font-size: 14px;
  color: var(--dim);
  margin-top: 6px;
}

.preview-more {
  margin-top: 12px;
  font-size: 15px;
}

.tag {
  margin: 14px 0 4px;
  font-size: 14px;
  font-weight: 600;
  color: var(--accent);
}

.rule {
  font-family: var(--display);
  font-size: 19px;
  padding: 10px 14px;
  background: var(--rulebg);
  border-radius: 8px;
}

.courses {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 18px;
}

.course {
  display: block;
  color: var(--ink);
  text-decoration: none;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 20px 22px;
}

.course:hover {
  border-color: var(--accent);
}

.course .glyph {
  width: 48px;
  height: 48px;
  color: var(--accent);
}

.course h3 {
  font-size: 24px;
  margin: 10px 0 8px;
}

.course:hover h3 {
  color: var(--accent);
}

.course p {
  margin: 0 0 8px;
}

.course .meta {
  color: var(--dim);
  font-size: 15px;
  margin: 0;
}

.parts {
  list-style: none;
  counter-reset: part;
  margin: 0;
  padding: 0;
  max-width: 68ch;
}

.parts li {
  counter-increment: part;
  display: grid;
  grid-template-columns: 2.4em minmax(0, 1fr);
  gap: 12px;
  padding: 12px 0;
  border-top: 1px solid var(--line);
}

.parts li:last-child {
  border-bottom: 1px solid var(--line);
}

.parts li::before {
  content: counter(part);
  font-family: var(--display);
  font-size: 22px;
  color: var(--accent);
  line-height: 1.2;
}

.lesson {
  max-width: 68ch;
  background: var(--panel);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 8px 26px 22px;
}

.lesson p {
  margin: 0 0 10px;
}

.steps {
  padding-left: 22px;
  margin: 0 0 10px;
}

.steps li {
  margin: 6px 0;
}

.steps .why {
  display: block;
  color: var(--dim);
  font-size: 15px;
}

.answer {
  display: inline-block;
  font-family: var(--mono);
  padding: 4px 12px;
  border: 1.5px solid var(--ink);
  border-radius: 4px;
}

.note {
  color: var(--dim);
  font-size: 15px;
}

.trap {
  border-left: 3px solid var(--warn);
  background: var(--warnbg);
  border-radius: 0 8px 8px 0;
  padding: 10px 14px;
}

.trap p {
  margin: 0;
}

.foot {
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px;
  border-top: 1px solid var(--line);
  color: var(--dim);
  font-size: 14px;
  display: flex;
  gap: 18px;
  flex-wrap: wrap;
  align-items: center;
}

.foot nav {
  display: flex;
  gap: 14px;
}

.foot a {
  color: var(--dim);
}

.foot p {
  margin: 0;
  margin-left: auto;
}

body.notfound {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

body.notfound h1 {
  font-size: 28px;
  margin: 0 0 8px;
}

@media (max-width: 820px) {
  .top {
    padding: 10px 16px;
    gap: 14px;
  }
  .topnav {
    display: none;
  }
  main {
    padding: 0 16px 48px;
  }
  .hero {
    grid-template-columns: minmax(0, 1fr);
    gap: 28px;
    padding-top: 32px;
  }
  .lesson {
    padding: 6px 18px 18px;
  }
}
@media (prefers-reduced-motion: no-preference) {
  .course, .button, .topnav a {
    transition: color 0.15s ease, border-color 0.15s ease;
  }
}